Teresa el Valiente

Teresa el Valiente (1061-) was a princess of the Kingdom of Castile. The daughter of King Alfonso VI of Castile and Queen Constance of Burgundy, Teresa was married to Prince Affonso of Portugal in 1086.

Biography
Teresa el Valiente was the daughter of King Alfonso VI of Castile and his French wife, Queen-Consort Constance of Burgundy. She was their second daughter and third child, behind Prince Rodrigo I of Castile and Urraca el Valiente. Teresa was a natural negotiator with diplomatic ability, like her older sister. In 1086 she was married to Prince Affonso, a Portuguese prince, to consolidate a marriage with the neighboring Kingdom of Portugal.